CU (Powerline)

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CU is the designation of a line for high voltage direct current (HVDC) transmission between Coal Creek, North Dakota, USA and Dickinson, Minnesota, USA. The CU, which went in service in 1979, can transfer an electrical power of 1,000 megawatts at a symmetrical transmission voltage of 400 kV. An overhead line connection 426 miles (710 kilometers) long is used. As is the case in all modern HVDC systems, thyristor static inverters are used.

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